std_msgs/Header header
int32 id

# Tag size(s).
float64 size

# Pose in the camera frame
geometry_msgs/PoseWithCovarianceStamped pose

float64 change_distance
float64 max_change_distance
bool pose_lost_flag
bool pose_abnormal_flag

# 检测到的tag个数
int32 det_size

int32 hamming
# 置信度
# 80~100 High confidence level
# 50~79 Medium confidence level
# 0~49  Low confidence level
int32 flag
